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Geobacillus stearothermophilus (previously Bacillus stearothermophilus) [1] [2] is a rod-shaped, Gram-positive bacterium and a member of the phylum Bacillota. The bacterium is a thermophile and is widely distributed in soil, hot springs, ocean sediment, and is a cause of spoilage in food products.
Bacillus stearothermophilus is a common inhabitant of soil, hot springs, desert sand, Arctic waters, ocean sediments, food and compost. The incidence of B. stearothermophilus in foods is related to the distribution of the microorganism in soil, water and plants.
26 Ιουν 2017 · The species G. stearothermophilus was first described in 1920 and was isolated from canned cream-style corn. G. stearothermophilus is a common contaminant of dairy products, particularly milk powder and has also been isolated from dried soups and vegetables.
Bacillus stearothermophilus is the typical species responsible for the thermophilic flat sour spoilage of low-acid canned foods. It ferments carbohydrates with the production of short-chain fatty acids that ‘sour’ the product.
Geobacillus stearothermophilus (formerly Bacillus stearothermophilus) is another aerobic sporeforming species of significance for the dairy industry (Burgess et al., 2010). Together with Bacillus spp., G. stearothermophilus can cause long term persistent contamination of dairy processing facilities, due to their ability to form biofilms on ...
26 Ιουν 2017 · For example, this is the first study to provide evidence of dairy adaptation in G. stearothermophilus - a phenotypic feature not typically considered standard in this species - by identifying the presence of a putative lac operon in four dairy strains.
19 Οκτ 2014 · The genus Geobacillus now comprises 11 species: G. stearothermophilus, G. caldoxylosilyticus, G. jurassicus, G. subterraneus, G. thermantarcticus, G. thermocatenulatus, G. thermodenitrificans, G. thermoglucosidans, G. thermoleovorans, G. toebii, and G. uzenensis.
